Directional homo mixer



Jan. 22, 1946. c. FISHER DIRECTIONAL HOMO-MIXER 2' Sheets-Sheet 1 Filed March 7, 1944 v v g INVENTOR [Au/z C fiJflf/P.

ATTO'RNEY Filed March 7, 1944 2 Sheets-Sheet 2 I INVENTOR [an /5 C /7J//i/P.

[BY-I0 ATTORN EY but obviously a, lesser or a greater number may be employed. Housing I5 is preferably provided with removable side covers l5 rendering the shaft bearing and other parts of the mechanism readily accessible.

The stator is composed of two telescoping members. The outer member 29 comprises a cup formation 30 provided with a central opening 3| and a peripheral ledge or flange 32 with a gradually inwardly curved outer surface. The interior shape of the ledge may be altered as .indicated in Figs. 6 and '7, and as will be presently explained. Extending from the cup formation there are supporting or suspension legs or arms 33, corresponding in number ,to. that of stator guides or rods 28. Stator member 29 may be considered a housing for the other or inner stator member 34, which comprises a central body 35, from which again project legs or arms 38. Extending from and through central body is a plurality of vanes 31 disposed at'a tangent to a theoretical inner circle. Their outer edges are preferably curved to correspond with the interior curvature of cup or housing 30 of the.

stator member 29, and in'cooperation with the latter these vanes provide a plurality of elongated, parallel and axially directed discharge passage from the stator. It will be observed that the interior ends of vanes 31 are inclined as at 38, the purpose of which shape will become presently evident. Arms 33 and 36 of the stator members are provided with'apertures 39 for the reception of threaded reduced end portions of frame or guide rods 28 supporting the stator assembly; I

In Figs. 2 and 3 there is illustrated the rotor 40 of my device, which consists of an enlargement or head 4| forming a hollow structure composed of an outer, angularly shaped ledge 42,

and a disc-like inner flange 43, betweenwhich outer and inner rotor" parts are disposed inclined vanes 44. The center opening 'of the ledge 42 registers with opening 3i of the outer stator member. hollow reduced portion or' sleeve- 46' provided with an internal thread 41 for the reception of and the engagement with threaded end 48 of reduced drive shaft part 49. I prefer -to' pass threaded portion 48 through sleeve 46 of the rotor, and to attach lock nut 50 to the protruding threaded shaft end, and to secure that look nut against movement by means ofa pin or similar means 5|.

Referring now to Figs. 6 and 7, these illustrae tions denote variations of the outer stator member and of the rotor, and especially of their end structures. In Fig. 6 the internally flanged end 32' of the stator member is provided with an annular interior recess 52, and ledge 42 of the rotor member is provided with a corresponding annular tongue or extension 53 adapted to operate within groove 52. In Fig. 7 flange portion 32" of the outer stator member is provided with a male step 54, and in the ledge 42 of the rotor there is ar-' ranged a female step 55 for the reception of male step 54. The groove andtongue provision of Fig. 6, and the step arrangement of Fig. 7, are intended to provide a more secure seal between the stator and rotor. It is obvious that any other suitable end construction providing'aproper cooperation between the twomembers may be substituted. I Y f Rotor 40 driven by shaft 2 I, which is actuated by motive source l8, operates between the two stator members. It will be observed that the Extending from flange 43- is a stator member.

direction in respect to the drive shaft 2i.

number of vanes of the rotor is less than the number of stator vanes and the resulting discharge ports of the stator. It will be also observed that the intake port of the device composed of stator opening 3| in registry with rotor opening 45 is disposed centrally. It will be noted that the discharge or ejecting passages formed between thewall of the outer stator member and the vanes ,of' the inner stator member are parallel with one another and are disposed in axial These passages may, however, be of a conical or converging construction, not shown. In order to properly journal the rotor within the stator I preferably provide one or two bearing sleeves 56 within the cylindrical center 51 of the interior The inclined ends 38 of rotor vanes 31 register with inclined edges 44 of the rotor.

' I Operation The entire stator and rotor assembly forming a type of a turbine is intended to be submerged As the relatively small but fast-moving solid stream of liquid is ejectedfrom the discharge ports, the body of the still liquid, against which this stream is directed, will be forcibly moved in the direction of the stream, and will be displaced by the latter. At the same time the still liquid,

immediately surrounding that fast moving small stream: of liquid will'be caused tomove with and will augmentthe area andthe moving force of the stream. Thus a relatively small-volumed but "becomes immediately filled by equal portions of the liquid behind them. Thus a. rapid and violent turbulence of the entire formerly still body of the liquid is produced.

The method of moving large bodies of liquids by means of rapidly moving small streams of liquid is not "to bemistaken for the Well-known ejector principle, since it is based on entirely different theories and achieves entirely different results, as is clearly evident from the foregoing explanation. On the other hand, it is readily conceivable that a device for creating a concise,

fast moving stream of liquid within a still body of liquid may be utilized for propulsion of movable means equipped with my device. Thus, for instance, I visualize a ship equipped with my device for providing a stream of fast moving waterdirected into the relatively still body of water of the'sea, whereby propulsion of the ship results through the reaction of the still water against the action of the fast'moving column of water issuing from the device. This type of propulsion again should not be confused with ship propulsion by propellers where the propeller acts as a screw and the water as a nut.

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While the foregoing is directed toward the aim of producing rapid and violent movement of relatively large, still bodies of liquid media, my invention should be also considered from the standpoint of providing propulsion or steering by way of reaction. Thus it may find useful applications inpowering or steering of surface ships or aircraft, the steering action being produced by changing the position of the device.

In the foregoing the word one-directional is used in connection with the description of the type of stream or column produced by my device. This term is intended to imply that such stream or column is truly linear, that is to say that all. its portions issuing from the plurality of parallel, peripheral and axially disposed stator ports are propagated in straight, parallel lines, and that the resulting powerful stream or column does not deviate from its intended straight-line course, nor does it rotate or assume a helical form, since such deviations would defeat the intended purpose and function of the device a Obviously the description of the specific embodiments illustrated in the drawings serve merely for the purpose of explaining the principle of my invention and not in a limiting sense. Similarly, while only one of the devices is illustrated being placed in a vessel, any number of means for creating a plurality of fast-moving liquid streams may be placed in a container at various heights or at different angles, especially when such vessel is of a large size. Thus, while I have been more or less specific in describing parts of my devices, it is obvious that changes and improvements may be incorporated therein, without departing from the underlying principle and broad scope of my invention, as defined in the annexed claims,

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. air-propuisiormdecicasfomfluidsmatteri a power source, impeller means driven thereby and adapted to operate within a body of fluid matter, said means comprising a stator and a rotor, the stator being composed of two telescoping members between which the rotor operates, the exterior stator member having a central intake port, a plurality of axially disposed discharge ports formed between the two stator members,,a drive shaft for the rotor passing through said intake port, and a journal for the drive shaft provided in the interior stator member .near the discharge end of the discharge ports.

3. In a propulsion device for fluid media in confinement, a motive source operative from without such media, a stator and rotor assembly operative within such media, means for supporting the assembly and means for transmitting power from said motive source to the rotor of the assembly, said assembly comprising telescoping stator members and a rotor operative between them, the outer stator member forming a cup with a central opening in its bottom and a guide flange, the

the wall of the outer member, the rotor comprising a hollow head with inclined vanes, and a reduced center portion journaled in the center of the inner member, the rotor head operating between the flange of the outer stator member and the inner ends of the vanes in the inner stator member, said power transmitting means extending into said reduced center portion of the rotor and being removably secured thereto.

4. In a propulsion device for and adapted to be bodily immersed in a liquid medium, a stator having a central intake for the reception of an axial stream of such medium, and axially directed discharge means for axially ejecting said medium, and a rotor operative between said intake and discharge means for drawing in a central, axial stream of said medium and for forcing it through said discharge means, said stator comprising two telescoping members, the inner member having parallel, axially disposed vanes in intimate contact with the cylindrical interior of the outer stator member, the cooperation between these members forming a plura 'ty of axial compartments constituting the discharge ports, said rotor having a central sleeve extension journaled in the inner stator member.

5. In a device for the purpose indicated, a twopart stator having intake and discharge ports and a rotor operative between the two stator parts, the intake port being disposed centrally, the discharge port comprising a plurality of peripheral, substantially parallel, "axially directed passages said prising a motive source disposed exteriorly to said container and having a drive shaft extending into the container, asupport for the drive shaft and for the'working elements of the device provided between the motive source and said container, a liquid-tight member connecting the support with said container, said working elements comprising a stator and rotor assembly, the stator being composed of two telescopingmembers, the outer member being substantially cup-shaped and having a central intake port, the inner member having a plurality of parallel, axially-disposed vanes forming, in conjunction with, the outer member, axial discharge ports, the rotor being operative between the intake port and the axial discharge ports and having a. central intake passage in registry with the intake port'of the outer stator member and an axial extension journaled in the inner stator member, said drive shaft passing through said stator intake port and the rotor intake passage and engaging said axial extension of the rotor.

LESLIE C. FISHER. 

